'use strict';

angular.module('activitiModeler')
  .controller('StencilController', ['$rootScope', '$scope', '$http', '$modal', '$timeout', function ($rootScope, $scope, $http, $modal, $timeout) {

    // Property window toggle state
    $scope.propertyWindowState = {'collapsed': false};

    // Add reference to global header-config
    $scope.headerConfig = KISBPM.HEADER_CONFIG;

    $scope.propertyWindowState.toggle = function () {
      $scope.propertyWindowState.collapsed = !$scope.propertyWindowState.collapsed;
      $timeout(function () {
        jQuery(window).trigger('resize');
      });
    };

    // Code that is dependent on an initialised Editor is wrapped in a promise for the editor
    $scope.editorFactory.promise.then(function () {

      /* Build stencil item list */

      // Build simple json representation of stencil set
      var stencilItemGroups = [];

      // Helper method: find a group in an array
      var findGroup = function (name, groupArray) {
        for (var index = 0; index < groupArray.length; index++) {
          if (groupArray[index].name === name) {
            return groupArray[index];
          }
        }
        return null;
      };

      // Helper method: add a new group to an array of groups
      var addGroup = function (groupName, groupArray) {
        var group = {name: groupName, items: [], paletteItems: [], groups: [], visible: true};
        groupArray.push(group);
        return group;
      };

      /*
       StencilSet items
       */
      $http({method: 'GET', url: KISBPM.URL.getStencilSet()}).success(function (data, status, headers, config) {

        var quickMenuDefinition = ['UserTask', 'EndNoneEvent', 'ExclusiveGateway',
          'CatchTimerEvent', 'ThrowNoneEvent', 'TextAnnotation',
          'SequenceFlow', 'Association'];
        var ignoreForPaletteDefinition = ['SequenceFlow', 'MessageFlow', 'Association', 'DataAssociation', 'DataStore', 'SendTask'];
        var quickMenuItems = [];

        var morphRoles = [];
        for (var i = 0; i < data.rules.morphingRules.length; i++) {
          var role = data.rules.morphingRules[i].role;
          var roleItem = {'role': role, 'morphOptions': []};
          morphRoles.push(roleItem);
        }

        // Check all received items
        for (var stencilIndex = 0; stencilIndex < data.stencils.length; stencilIndex++) {
          // Check if the root group is the 'diagram' group. If so, this item should not be shown.
          var currentGroupName = data.stencils[stencilIndex].groups[0];
          if (currentGroupName === 'Diagram' || currentGroupName === 'Form') {
            continue;  // go to next item
          }

          var removed = false;
          if (data.stencils[stencilIndex].removed) {
            removed = true;
          }

          var currentGroup = undefined;
          if (!removed) {
            // Check if this group already exists. If not, we create a new one

            if (currentGroupName !== null && currentGroupName !== undefined && currentGroupName.length > 0) {

              currentGroup = findGroup(currentGroupName, stencilItemGroups); // Find group in root groups array
              if (currentGroup === null) {
                currentGroup = addGroup(currentGroupName, stencilItemGroups);
              }

              // Add all child groups (if any)
              for (var groupIndex = 1; groupIndex < data.stencils[stencilIndex].groups.length; groupIndex++) {
                var childGroupName = data.stencils[stencilIndex].groups[groupIndex];
                var childGroup = findGroup(childGroupName, currentGroup.groups);
                if (childGroup === null) {
                  childGroup = addGroup(childGroupName, currentGroup.groups);
                }

                // The current group variable holds the parent of the next group (if any),
                // and is basically the last element in the array of groups defined in the stencil item
                currentGroup = childGroup;

              }

            }
          }

          // Construct the stencil item
          var stencilItem = {
            'id': data.stencils[stencilIndex].id,
            'name': data.stencils[stencilIndex].title,
            'description': data.stencils[stencilIndex].description,
            'icon': data.stencils[stencilIndex].icon,
            'type': data.stencils[stencilIndex].type,
            'roles': data.stencils[stencilIndex].roles,
            'removed': removed,
            'customIcon': false,
            'canConnect': false,
            'canConnectTo': false,
            'canConnectAssociation': false
          };

          if (data.stencils[stencilIndex].customIconId && data.stencils[stencilIndex].customIconId > 0) {
            stencilItem.customIcon = true;
            stencilItem.icon = data.stencils[stencilIndex].customIconId;
          }

          if (!removed) {
            if (quickMenuDefinition.indexOf(stencilItem.id) >= 0) {
              quickMenuItems[quickMenuDefinition.indexOf(stencilItem.id)] = stencilItem;
            }
          }

          if (stencilItem.id === 'TextAnnotation' || stencilItem.id === 'BoundaryCompensationEvent') {
            stencilItem.canConnectAssociation = true;
          }

          for (var i = 0; i < data.stencils[stencilIndex].roles.length; i++) {
            var stencilRole = data.stencils[stencilIndex].roles[i];
            if (stencilRole === 'sequence_start') {
              stencilItem.canConnect = true;
            } else if (stencilRole === 'sequence_end') {
              stencilItem.canConnectTo = true;
            }

            for (var j = 0; j < morphRoles.length; j++) {
              if (stencilRole === morphRoles[j].role) {
                if (!removed) {
                  morphRoles[j].morphOptions.push(stencilItem);
                }
                stencilItem.morphRole = morphRoles[j].role;
                break;
              }
            }
          }

          if (currentGroup) {
            // Add the stencil item to the correct group
            currentGroup.items.push(stencilItem);
            if (ignoreForPaletteDefinition.indexOf(stencilItem.id) < 0) {
              currentGroup.paletteItems.push(stencilItem);
            }

          } else {
            // It's a root stencil element
            if (!removed) {
              stencilItemGroups.push(stencilItem);
            }
          }
        }

        for (var i = 0; i < stencilItemGroups.length; i++) {
          if (stencilItemGroups[i].paletteItems && stencilItemGroups[i].paletteItems.length == 0) {
            stencilItemGroups[i].visible = false;
          }
        }

        $scope.stencilItemGroups = stencilItemGroups;

        var containmentRules = [];
        for (var i = 0; i < data.rules.containmentRules.length; i++) {
          var rule = data.rules.containmentRules[i];
          containmentRules.push(rule);
        }
        $scope.containmentRules = containmentRules;

        // remove quick menu items which are not available anymore due to custom pallette
        var availableQuickMenuItems = [];
        for (var i = 0; i < quickMenuItems.length; i++) {
          if (quickMenuItems[i]) {
            availableQuickMenuItems[availableQuickMenuItems.length] = quickMenuItems[i];
          }
        }

        $scope.quickMenuItems = availableQuickMenuItems;
        $scope.morphRoles = morphRoles;
      }).error(function (data, status, headers, config) {
        console.log('Something went wrong when fetching stencil items:' + JSON.stringify(data));
      });

      /*
       * Listen to selection change events: show properties
       */
      $scope.editor.registerOnEvent(ORYX.CONFIG.EVENT_SELECTION_CHANGED, function (event) {
        var shapes = event.elements;
        var canvasSelected = false;
        if (shapes && shapes.length == 0) {
          shapes = [$scope.editor.getCanvas()];
          canvasSelected = true;
        }
        if (shapes && shapes.length > 0) {

          var selectedShape = shapes.first();
          var stencil = selectedShape.getStencil();

          if ($rootScope.selectedElementBeforeScrolling && stencil.id().indexOf('BPMNDiagram') !== -1) {
            // ignore canvas event because of empty selection when scrolling stops
            return;
          }

          if ($rootScope.selectedElementBeforeScrolling && $rootScope.selectedElementBeforeScrolling.getId() === selectedShape.getId()) {
            $rootScope.selectedElementBeforeScrolling = null;
            return;
          }

          // Store previous selection
          $scope.previousSelectedShape = $scope.selectedShape;

          // Only do something if another element is selected (Oryx fires this event multiple times)
          if ($scope.selectedShape !== undefined && $scope.selectedShape.getId() === selectedShape.getId()) {
            if ($rootScope.forceSelectionRefresh) {
              // Switch the flag again, this run will force refresh
              $rootScope.forceSelectionRefresh = false;
            } else {
              // Selected the same element again, no need to update anything
              return;
            }
          }

          var selectedItem = {'title': '', 'properties': []};

          if (canvasSelected) {
            selectedItem.auditData = {
              'author': $scope.modelData.createdByUser,
              'createDate': $scope.modelData.createDate
            };
          }

          // Gather properties of selected item
          var properties = stencil.properties();
          for (var i = 0; i < properties.length; i++) {
            var property = properties[i];
            if (property.popular() == false) continue;
            var key = property.prefix() + "-" + property.id();

            if (key === 'oryx-name') {
              selectedItem.title = selectedShape.properties[key];
            }

            // First we check if there is a config for 'key-type' and then for 'type' alone
            var propertyConfig = KISBPM.PROPERTY_CONFIG[key + '-' + property.type()];
            if (propertyConfig === undefined || propertyConfig === null) {
              propertyConfig = KISBPM.PROPERTY_CONFIG[property.type()];
            }

            if (propertyConfig === undefined || propertyConfig === null) {
              console.log('WARNING: no property configuration defined for ' + key + ' of type ' + property.type());
            } else {

              if (selectedShape.properties[key] === 'true') {
                selectedShape.properties[key] = true;
              }

              if (KISBPM.CONFIG.showRemovedProperties == false && property.isHidden()) {
                continue;
              }

              var currentProperty = {
                'key': key,
                'title': property.title(),
                'type': property.type(),
                'mode': 'read',
                'hidden': property.isHidden(),
                'value': selectedShape.properties[key]
              };

              if ((currentProperty.type === 'complex' || currentProperty.type === 'multiplecomplex') && currentProperty.value && currentProperty.value.length > 0) {
                try {
                  currentProperty.value = JSON.parse(currentProperty.value);
                } catch (err) {
                  // ignore
                }
              }

              if (propertyConfig.readModeTemplateUrl !== undefined && propertyConfig.readModeTemplateUrl !== null) {
                currentProperty.readModeTemplateUrl = propertyConfig.readModeTemplateUrl + '?version=' + $rootScope.staticIncludeVersion;
              }
              if (propertyConfig.writeModeTemplateUrl !== null && propertyConfig.writeModeTemplateUrl !== null) {
                currentProperty.writeModeTemplateUrl = propertyConfig.writeModeTemplateUrl + '?version=' + $rootScope.staticIncludeVersion;
              }

              if (propertyConfig.templateUrl !== undefined && propertyConfig.templateUrl !== null) {
                currentProperty.templateUrl = propertyConfig.templateUrl + '?version=' + $rootScope.staticIncludeVersion;
                currentProperty.hasReadWriteMode = false;
              } else {
                currentProperty.hasReadWriteMode = true;
              }

              if (currentProperty.value === undefined
                || currentProperty.value === null
                || currentProperty.value.length == 0) {
                currentProperty.noValue = true;
              }

              selectedItem.properties.push(currentProperty);
            }
          }

          // Need to wrap this in an $apply block, see http://jimhoskins.com/2012/12/17/angularjs-and-apply.html
          $scope.safeApply(function () {
            $scope.selectedItem = selectedItem;
            $scope.selectedShape = selectedShape;
          });

        } else {
          $scope.safeApply(function () {
            $scope.selectedItem = {};
            $scope.selectedShape = null;
          });
        }
      });

      $scope.editor.registerOnEvent(ORYX.CONFIG.EVENT_SELECTION_CHANGED, function (event) {

        KISBPM.eventBus.dispatch(KISBPM.eventBus.EVENT_TYPE_HIDE_SHAPE_BUTTONS);
        var shapes = event.elements;

        if (shapes && shapes.length == 1) {

          var selectedShape = shapes.first();

          var a = $scope.editor.getCanvas().node.getScreenCTM();

          var absoluteXY = selectedShape.absoluteXY();

          absoluteXY.x *= a.a;
          absoluteXY.y *= a.d;

          var additionalIEZoom = 1;
          if (!isNaN(screen.logicalXDPI) && !isNaN(screen.systemXDPI)) {
            var ua = navigator.userAgent;
            if (ua.indexOf('MSIE') >= 0) {
              //IE 10 and below
              var zoom = Math.round((screen.deviceXDPI / screen.logicalXDPI) * 100);
              if (zoom !== 100) {
                additionalIEZoom = zoom / 100
              }
            }
          }

          if (additionalIEZoom === 1) {
            absoluteXY.y = absoluteXY.y - jQuery("#canvasSection").offset().top + 5;
            absoluteXY.x = absoluteXY.x - jQuery("#canvasSection").offset().left;

          } else {
            var canvasOffsetLeft = jQuery("#canvasSection").offset().left;
            var canvasScrollLeft = jQuery("#canvasSection").scrollLeft();
            var canvasScrollTop = jQuery("#canvasSection").scrollTop();

            var offset = a.e - (canvasOffsetLeft * additionalIEZoom);
            var additionaloffset = 0;
            if (offset > 10) {
              additionaloffset = (offset / additionalIEZoom) - offset;
            }
            absoluteXY.y = absoluteXY.y - (jQuery("#canvasSection").offset().top * additionalIEZoom) + 5 + ((canvasScrollTop * additionalIEZoom) - canvasScrollTop);
            absoluteXY.x = absoluteXY.x - (canvasOffsetLeft * additionalIEZoom) + additionaloffset + ((canvasScrollLeft * additionalIEZoom) - canvasScrollLeft);
          }

          var bounds = new ORYX.Core.Bounds(a.e + absoluteXY.x, a.f + absoluteXY.y, a.e + absoluteXY.x + a.a * selectedShape.bounds.width(), a.f + absoluteXY.y + a.d * selectedShape.bounds.height());
          var shapeXY = bounds.upperLeft();

          var stencilItem = $scope.getStencilItemById(selectedShape.getStencil().idWithoutNs());
          var morphShapes = [];
          if (stencilItem && stencilItem.morphRole) {
            for (var i = 0; i < $scope.morphRoles.length; i++) {
              if ($scope.morphRoles[i].role === stencilItem.morphRole) {
                morphShapes = $scope.morphRoles[i].morphOptions;
              }
            }
          }

          var x = shapeXY.x;
          if (bounds.width() < 48) {
            x -= 24;
          }

          if (morphShapes && morphShapes.length > 0) {
            // In case the element is not wide enough, start the 2 bottom-buttons more to the left
            // to prevent overflow in the right-menu
            var morphButton = document.getElementById('morph-button');
            morphButton.style.display = "block";
            morphButton.style.left = x + 24 + 'px';
            morphButton.style.top = (shapeXY.y + bounds.height() + 2) + 'px';
          }

          var deleteButton = document.getElementById('delete-button');
          deleteButton.style.display = "block";
          deleteButton.style.left = x + 'px';
          deleteButton.style.top = (shapeXY.y + bounds.height() + 2) + 'px';

          if (stencilItem && (stencilItem.canConnect || stencilItem.canConnectAssociation)) {
            var quickButtonCounter = 0;
            var quickButtonX = shapeXY.x + bounds.width() + 5;
            var quickButtonY = shapeXY.y;
            jQuery('.Oryx_button').each(function (i, obj) {
              if (obj.id !== 'morph-button' && obj.id != 'delete-button') {
                quickButtonCounter++;
                if (quickButtonCounter > 3) {
                  quickButtonX = shapeXY.x + bounds.width() + 5;
                  quickButtonY += 24;
                  quickButtonCounter = 1;

                } else if (quickButtonCounter > 1) {
                  quickButtonX += 24;
                }
                obj.style.display = "block";
                obj.style.left = quickButtonX + 'px';
                obj.style.top = quickButtonY + 'px';
              }
            });
          }
        }
      });

      if (!$rootScope.stencilInitialized) {
        KISBPM.eventBus.addListener(KISBPM.eventBus.EVENT_TYPE_HIDE_SHAPE_BUTTONS, function (event) {
          jQuery('.Oryx_button').each(function (i, obj) {
            obj.style.display = "none";
          });
        });

        /*
         * Listen to property updates and act upon them
         */
        KISBPM.eventBus.addListener(KISBPM.eventBus.EVENT_TYPE_PROPERTY_VALUE_CHANGED, function (event) {
          if (event.property && event.property.key) {
            // If the name property is been updated, we also need to change the title of the currently selected item
            if (event.property.key === 'oryx-name' && $scope.selectedItem !== undefined && $scope.selectedItem !== null) {
              $scope.selectedItem.title = event.newValue;
            }

            // Update "no value" flag
            event.property.noValue = (event.property.value === undefined
              || event.property.value === null
              || event.property.value.length == 0);
          }
        });

        $rootScope.stencilInitialized = true;
      }

      $scope.morphShape = function () {
        $scope.safeApply(function () {

          var shapes = $rootScope.editor.getSelection();
          if (shapes && shapes.length == 1) {
            $rootScope.currentSelectedShape = shapes.first();
            var stencilItem = $scope.getStencilItemById($rootScope.currentSelectedShape.getStencil().idWithoutNs());
            var morphShapes = [];
            for (var i = 0; i < $scope.morphRoles.length; i++) {
              if ($scope.morphRoles[i].role === stencilItem.morphRole) {
                morphShapes = $scope.morphRoles[i].morphOptions.slice();
              }
            }

            // Method to open shape select dialog (used later on)
            var showSelectShapeDialog = function () {
              $rootScope.morphShapes = morphShapes;
              $modal({
                backdrop: false,
                keyboard: true,
                template: 'editor-app/popups/select-shape.html?version=' + Date.now()
              });
            };

            showSelectShapeDialog();
          }
        });
      };

      $scope.deleteShape = function () {
        KISBPM.TOOLBAR.ACTIONS.deleteItem({'$scope': $scope});
      };

      $scope.quickAddItem = function (newItemId) {
        $scope.safeApply(function () {

          var shapes = $rootScope.editor.getSelection();
          if (shapes && shapes.length == 1) {
            $rootScope.currentSelectedShape = shapes.first();

            var containedStencil = undefined;
            var stencilSets = $scope.editor.getStencilSets().values();
            for (var i = 0; i < stencilSets.length; i++) {
              var stencilSet = stencilSets[i];
              var nodes = stencilSet.nodes();
              for (var j = 0; j < nodes.length; j++) {
                if (nodes[j].idWithoutNs() === newItemId) {
                  containedStencil = nodes[j];
                  break;
                }
              }
            }

            if (!containedStencil) return;

            var option = {
              type: $scope.currentSelectedShape.getStencil().namespace() + newItemId,
              namespace: $scope.currentSelectedShape.getStencil().namespace()
            };
            option['connectedShape'] = $rootScope.currentSelectedShape;
            option['parent'] = $rootScope.currentSelectedShape.parent;
            option['containedStencil'] = containedStencil;

            var args = {sourceShape: $rootScope.currentSelectedShape, targetStencil: containedStencil};
            var targetStencil = $scope.editor.getRules().connectMorph(args);
            if (!targetStencil) {
              return;
            }// Check if there can be a target shape
            option['connectingType'] = targetStencil.id();

            var command = new KISBPM.CreateCommand(option, undefined, undefined, $scope.editor);

            $scope.editor.executeCommands([command]);
          }
        });
      };

    }); // end of $scope.editorFactory.promise block

    /* Click handler for clicking a property */
    $scope.propertyClicked = function (index) {
      if (!$scope.selectedItem.properties[index].hidden) {
        $scope.selectedItem.properties[index].mode = "write";
      }
    };

    /* Helper method to retrieve the template url for a property */
    $scope.getPropertyTemplateUrl = function (index) {
      return $scope.selectedItem.properties[index].templateUrl;
    };
    $scope.getPropertyReadModeTemplateUrl = function (index) {
      return $scope.selectedItem.properties[index].readModeTemplateUrl;
    };
    $scope.getPropertyWriteModeTemplateUrl = function (index) {
      return $scope.selectedItem.properties[index].writeModeTemplateUrl;
    };

    /* Method available to all sub controllers (for property controllers) to update the internal Oryx model */
    $scope.updatePropertyInModel = function (property, shapeId) {

      var shape = $scope.selectedShape;
      // Some updates may happen when selected shape is already changed, so when an additional
      // shapeId is supplied, we need to make sure the correct shape is updated (current or previous)
      if (shapeId) {
        if (shape.id != shapeId && $scope.previousSelectedShape && $scope.previousSelectedShape.id == shapeId) {
          shape = $scope.previousSelectedShape;
        } else {
          shape = null;
        }
      }

      if (!shape) {
        // When no shape is selected, or no shape is found for the alternative
        // shape ID, do nothing
        return;
      }
      var key = property.key;
      var newValue = property.value;
      var oldValue = shape.properties[key];

      if (newValue != oldValue) {
        var commandClass = ORYX.Core.Command.extend({
          construct: function () {
            this.key = key;
            this.oldValue = oldValue;
            this.newValue = newValue;
            this.shape = shape;
            this.facade = $scope.editor;
          },
          execute: function () {
            this.shape.setProperty(this.key, this.newValue);
            this.facade.getCanvas().update();
            this.facade.updateSelection();
          },
          rollback: function () {
            this.shape.setProperty(this.key, this.oldValue);
            this.facade.getCanvas().update();
            this.facade.updateSelection();
          }
        });
        // Instantiate the class
        var command = new commandClass();

        // Execute the command
        $scope.editor.executeCommands([command]);
        $scope.editor.handleEvents({
          type: ORYX.CONFIG.EVENT_PROPWINDOW_PROP_CHANGED,
          elements: [shape],
          key: key
        });

        // Switch the property back to read mode, now the update is done
        property.mode = 'read';

        // Fire event to all who is interested
        // Fire event to all who want to know about this
        var event = {
          type: KISBPM.eventBus.EVENT_TYPE_PROPERTY_VALUE_CHANGED,
          property: property,
          oldValue: oldValue,
          newValue: newValue
        };
        KISBPM.eventBus.dispatch(event.type, event);
      } else {
        // Switch the property back to read mode, no update was needed
        property.mode = 'read';
      }

    };

    /**
     * Helper method that searches a group for an item with the given id.
     * If not found, will return undefined.
     */
    $scope.findStencilItemInGroup = function (stencilItemId, group) {

      var item;

      // Check all items directly in this group
      for (var j = 0; j < group.items.length; j++) {
        item = group.items[j];
        if (item.id === stencilItemId) {
          return item;
        }
      }

      // Check the child groups
      if (group.groups && group.groups.length > 0) {
        for (var k = 0; k < group.groups.length; k++) {
          item = $scope.findStencilItemInGroup(stencilItemId, group.groups[k]);
          if (item) {
            return item;
          }
        }
      }

      return undefined;
    };

    /**
     * Helper method to find a stencil item.
     */
    $scope.getStencilItemById = function (stencilItemId) {
      for (var i = 0; i < $scope.stencilItemGroups.length; i++) {
        var element = $scope.stencilItemGroups[i];

        // Real group
        if (element.items !== null && element.items !== undefined) {
          var item = $scope.findStencilItemInGroup(stencilItemId, element);
          if (item) {
            return item;
          }
        } else { // Root stencil item
          if (element.id === stencilItemId) {
            return element;
          }
        }
      }
      return undefined;
    };

    /*
     * DRAG AND DROP FUNCTIONALITY
     */

    $scope.dropCallback = function (event, ui) {

      $scope.editor.handleEvents({
        type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
        highlightId: "shapeRepo.attached"
      });
      $scope.editor.handleEvents({
        type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
        highlightId: "shapeRepo.added"
      });

      $scope.editor.handleEvents({
        type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
        highlightId: "shapeMenu"
      });

      KISBPM.eventBus.dispatch(KISBPM.eventBus.EVENT_TYPE_HIDE_SHAPE_BUTTONS);

      if ($scope.dragCanContain) {

        var item = $scope.getStencilItemById(ui.draggable[0].id);

        var pos = {x: event.pageX, y: event.pageY};

        var additionalIEZoom = 1;
        if (!isNaN(screen.logicalXDPI) && !isNaN(screen.systemXDPI)) {
          var ua = navigator.userAgent;
          if (ua.indexOf('MSIE') >= 0) {
            //IE 10 and below
            var zoom = Math.round((screen.deviceXDPI / screen.logicalXDPI) * 100);
            if (zoom !== 100) {
              additionalIEZoom = zoom / 100;
            }
          }
        }

        var screenCTM = $scope.editor.getCanvas().node.getScreenCTM();

        // Correcting the UpperLeft-Offset
        pos.x -= (screenCTM.e / additionalIEZoom);
        pos.y -= (screenCTM.f / additionalIEZoom);
        // Correcting the Zoom-Factor
        pos.x /= screenCTM.a;
        pos.y /= screenCTM.d;

        // Correcting the ScrollOffset
        pos.x -= document.documentElement.scrollLeft;
        pos.y -= document.documentElement.scrollTop;

        var parentAbs = $scope.dragCurrentParent.absoluteXY();
        pos.x -= parentAbs.x;
        pos.y -= parentAbs.y;

        var containedStencil = undefined;
        var stencilSets = $scope.editor.getStencilSets().values();
        for (var i = 0; i < stencilSets.length; i++) {
          var stencilSet = stencilSets[i];
          var nodes = stencilSet.nodes();
          for (var j = 0; j < nodes.length; j++) {
            if (nodes[j].idWithoutNs() === ui.draggable[0].id) {
              containedStencil = nodes[j];
              break;
            }
          }

          if (!containedStencil) {
            var edges = stencilSet.edges();
            for (var j = 0; j < edges.length; j++) {
              if (edges[j].idWithoutNs() === ui.draggable[0].id) {
                containedStencil = edges[j];
                break;
              }
            }
          }
        }

        if (!containedStencil) return;

        if ($scope.quickMenu) {
          var shapes = $scope.editor.getSelection();
          if (shapes && shapes.length == 1) {
            var currentSelectedShape = shapes.first();

            var option = {};
            option.type = currentSelectedShape.getStencil().namespace() + ui.draggable[0].id;
            option.namespace = currentSelectedShape.getStencil().namespace();
            option.connectedShape = currentSelectedShape;
            option.parent = $scope.dragCurrentParent;
            option.containedStencil = containedStencil;

            // If the ctrl key is not pressed,
            // snapp the new shape to the center
            // if it is near to the center of the other shape
            if (!event.ctrlKey) {
              // Get the center of the shape
              var cShape = currentSelectedShape.bounds.center();
              // Snapp +-20 Pixel horizontal to the center
              if (20 > Math.abs(cShape.x - pos.x)) {
                pos.x = cShape.x;
              }
              // Snapp +-20 Pixel vertical to the center
              if (20 > Math.abs(cShape.y - pos.y)) {
                pos.y = cShape.y;
              }
            }

            option.position = pos;

            if (containedStencil.idWithoutNs() !== 'SequenceFlow' && containedStencil.idWithoutNs() !== 'Association' &&
              containedStencil.idWithoutNs() !== 'MessageFlow' && containedStencil.idWithoutNs() !== 'DataAssociation') {
              var args = {sourceShape: currentSelectedShape, targetStencil: containedStencil};
              var targetStencil = $scope.editor.getRules().connectMorph(args);
              if (!targetStencil) {
                return;
              }// Check if there can be a target shape
              option.connectingType = targetStencil.id();
            }

            var command = new KISBPM.CreateCommand(option, $scope.dropTargetElement, pos, $scope.editor);

            $scope.editor.executeCommands([command]);
          }
        } else {
          var canAttach = false;
          if (containedStencil.idWithoutNs() === 'BoundaryErrorEvent' || containedStencil.idWithoutNs() === 'BoundaryTimerEvent' ||
            containedStencil.idWithoutNs() === 'BoundarySignalEvent' || containedStencil.idWithoutNs() === 'BoundaryMessageEvent' ||
            containedStencil.idWithoutNs() === 'BoundaryCancelEvent' || containedStencil.idWithoutNs() === 'BoundaryCompensationEvent') {
            // Modify position, otherwise boundary event will get position related to left corner of the canvas instead of the container
            pos = $scope.editor.eventCoordinates(event);
            canAttach = true;
          }

          var option = {};
          option['type'] = $scope.modelData.model.stencilset.namespace + item.id;
          option['namespace'] = $scope.modelData.model.stencilset.namespace;
          option['position'] = pos;
          option['parent'] = $scope.dragCurrentParent;

          var commandClass = ORYX.Core.Command.extend({
            construct: function (option, dockedShape, canAttach, position, facade) {
              this.option = option;
              this.docker = null;
              this.dockedShape = dockedShape;
              this.dockedShapeParent = dockedShape.parent || facade.getCanvas();
              this.position = position;
              this.facade = facade;
              this.selection = this.facade.getSelection();
              this.shape = null;
              this.parent = null;
              this.canAttach = canAttach;
            },
            execute: function () {
              if (!this.shape) {
                this.shape = this.facade.createShape(option);
                this.parent = this.shape.parent;
              } else if (this.parent) {
                this.parent.add(this.shape);
              }

              if (this.canAttach && this.shape.dockers && this.shape.dockers.length) {
                this.docker = this.shape.dockers[0];

                this.dockedShapeParent.add(this.docker.parent);

                // Set the Docker to the new Shape
                this.docker.setDockedShape(undefined);
                this.docker.bounds.centerMoveTo(this.position);
                if (this.dockedShape !== this.facade.getCanvas()) {
                  this.docker.setDockedShape(this.dockedShape);
                }
                this.facade.setSelection([this.docker.parent]);
              }

              this.facade.getCanvas().update();
              this.facade.updateSelection();

            },
            rollback: function () {
              if (this.shape) {
                this.facade.setSelection(this.selection.without(this.shape));
                this.facade.deleteShape(this.shape);
              }
              if (this.canAttach && this.docker) {
                this.docker.setDockedShape(undefined);
              }
              this.facade.getCanvas().update();
              this.facade.updateSelection();

            }
          });

          // Update canvas
          var command = new commandClass(option, $scope.dragCurrentParent, canAttach, pos, $scope.editor);
          $scope.editor.executeCommands([command]);

          // Fire event to all who want to know about this
          var dropEvent = {
            type: KISBPM.eventBus.EVENT_TYPE_ITEM_DROPPED,
            droppedItem: item,
            position: pos
          };
          KISBPM.eventBus.dispatch(dropEvent.type, dropEvent);
        }
      }

      $scope.dragCurrentParent = undefined;
      $scope.dragCurrentParentId = undefined;
      $scope.dragCurrentParentStencil = undefined;
      $scope.dragCanContain = undefined;
      $scope.quickMenu = undefined;
      $scope.dropTargetElement = undefined;
    };


    $scope.overCallback = function (event, ui) {
      $scope.dragModeOver = true;
    };

    $scope.outCallback = function (event, ui) {
      $scope.dragModeOver = false;
    };

    $scope.startDragCallback = function (event, ui) {
      $scope.dragModeOver = false;
      $scope.quickMenu = false;
      if (!ui.helper.hasClass('stencil-item-dragged')) {
        ui.helper.addClass('stencil-item-dragged');
      }
    };

    $scope.startDragCallbackQuickMenu = function (event, ui) {
      $scope.dragModeOver = false;
      $scope.quickMenu = true;
    };

    $scope.dragCallback = function (event, ui) {

      if ($scope.dragModeOver != false) {

        var coord = $scope.editor.eventCoordinatesXY(event.pageX, event.pageY);

        var additionalIEZoom = 1;
        if (!isNaN(screen.logicalXDPI) && !isNaN(screen.systemXDPI)) {
          var ua = navigator.userAgent;
          if (ua.indexOf('MSIE') >= 0) {
            //IE 10 and below
            var zoom = Math.round((screen.deviceXDPI / screen.logicalXDPI) * 100);
            if (zoom !== 100) {
              additionalIEZoom = zoom / 100
            }
          }
        }

        if (additionalIEZoom !== 1) {
          coord.x = coord.x / additionalIEZoom;
          coord.y = coord.y / additionalIEZoom;
        }

        var aShapes = $scope.editor.getCanvas().getAbstractShapesAtPosition(coord);

        if (aShapes.length <= 0) {
          if (event.helper) {
            $scope.dragCanContain = false;
            return false;
          }
        }

        if (aShapes[0] instanceof ORYX.Core.Canvas) {
          $scope.editor.getCanvas().setHightlightStateBasedOnX(coord.x);
        }

        if (aShapes.length == 1 && aShapes[0] instanceof ORYX.Core.Canvas) {
          var parentCandidate = aShapes[0];

          $scope.dragCanContain = true;
          $scope.dragCurrentParent = parentCandidate;
          $scope.dragCurrentParentId = parentCandidate.id;

          $scope.editor.handleEvents({
            type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
            highlightId: "shapeRepo.attached"
          });
          $scope.editor.handleEvents({
            type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
            highlightId: "shapeRepo.added"
          });
          return false;
        } else {
          var item = $scope.getStencilItemById(event.target.id);

          var parentCandidate = aShapes.reverse().find(function (candidate) {
            return (candidate instanceof ORYX.Core.Canvas
              || candidate instanceof ORYX.Core.Node
              || candidate instanceof ORYX.Core.Edge);
          });

          if (!parentCandidate) {
            $scope.dragCanContain = false;
            return false;
          }

          if (item.type === "node") {

            // check if the draggable is a boundary event and the parent an Activity
            var _canContain = false;
            var parentStencilId = parentCandidate.getStencil().id();

            if ($scope.dragCurrentParentId && $scope.dragCurrentParentId === parentCandidate.id) {
              return false;
            }

            var parentItem = $scope.getStencilItemById(parentCandidate.getStencil().idWithoutNs());
            if (parentItem.roles.indexOf("Activity") > -1) {
              if (item.roles.indexOf("IntermediateEventOnActivityBoundary") > -1) {
                _canContain = true;
              }
            } else if (parentCandidate.getStencil().idWithoutNs() === 'Pool') {
              if (item.id === 'Lane') {
                _canContain = true;
              }
            }

            if (_canContain) {
              $scope.editor.handleEvents({
                type: ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW,
                highlightId: "shapeRepo.attached",
                elements: [parentCandidate],
                style: ORYX.CONFIG.SELECTION_HIGHLIGHT_STYLE_RECTANGLE,
                color: ORYX.CONFIG.SELECTION_VALID_COLOR
              });

              $scope.editor.handleEvents({
                type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
                highlightId: "shapeRepo.added"
              });
            } else {
              for (var i = 0; i < $scope.containmentRules.length; i++) {
                var rule = $scope.containmentRules[i];
                if (rule.role === parentItem.id) {
                  for (var j = 0; j < rule.contains.length; j++) {
                    if (item.roles.indexOf(rule.contains[j]) > -1) {
                      _canContain = true;
                      break;
                    }
                  }

                  if (_canContain) {
                    break;
                  }
                }
              }

              // Show Highlight
              $scope.editor.handleEvents({
                type: ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW,
                highlightId: 'shapeRepo.added',
                elements: [parentCandidate],
                color: _canContain ? ORYX.CONFIG.SELECTION_VALID_COLOR : ORYX.CONFIG.SELECTION_INVALID_COLOR
              });

              $scope.editor.handleEvents({
                type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
                highlightId: "shapeRepo.attached"
              });
            }

            $scope.dragCurrentParent = parentCandidate;
            $scope.dragCurrentParentId = parentCandidate.id;
            $scope.dragCurrentParentStencil = parentStencilId;
            $scope.dragCanContain = _canContain;

          } else {
            var canvasCandidate = $scope.editor.getCanvas();
            var canConnect = false;

            var targetStencil = $scope.getStencilItemById(parentCandidate.getStencil().idWithoutNs());
            if (targetStencil) {
              var associationConnect = false;
              if (stencil.idWithoutNs() === 'Association' && (curCan.getStencil().idWithoutNs() === 'TextAnnotation' || curCan.getStencil().idWithoutNs() === 'BoundaryCompensationEvent')) {
                associationConnect = true;
              } else if (stencil.idWithoutNs() === 'DataAssociation' && curCan.getStencil().idWithoutNs() === 'DataStore') {
                associationConnect = true;
              }

              if (targetStencil.canConnectTo || associationConnect) {
                canConnect = true;
              }
            }

            //Edge
            $scope.dragCurrentParent = canvasCandidate;
            $scope.dragCurrentParentId = canvasCandidate.id;
            $scope.dragCurrentParentStencil = canvasCandidate.getStencil().id();
            $scope.dragCanContain = canConnect;

            // Show Highlight
            $scope.editor.handleEvents({
              type: ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW,
              highlightId: 'shapeRepo.added',
              elements: [canvasCandidate],
              color: ORYX.CONFIG.SELECTION_VALID_COLOR
            });

            $scope.editor.handleEvents({
              type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
              highlightId: "shapeRepo.attached"
            });
          }
        }
      }
    };

    $scope.dragCallbackQuickMenu = function (event, ui) {

      if ($scope.dragModeOver != false) {
        var coord = $scope.editor.eventCoordinatesXY(event.pageX, event.pageY);

        var additionalIEZoom = 1;
        if (!isNaN(screen.logicalXDPI) && !isNaN(screen.systemXDPI)) {
          var ua = navigator.userAgent;
          if (ua.indexOf('MSIE') >= 0) {
            //IE 10 and below
            var zoom = Math.round((screen.deviceXDPI / screen.logicalXDPI) * 100);
            if (zoom !== 100) {
              additionalIEZoom = zoom / 100
            }
          }
        }

        if (additionalIEZoom !== 1) {
          coord.x = coord.x / additionalIEZoom;
          coord.y = coord.y / additionalIEZoom;
        }

        var aShapes = $scope.editor.getCanvas().getAbstractShapesAtPosition(coord);

        if (aShapes.length <= 0) {
          if (event.helper) {
            $scope.dragCanContain = false;
            return false;
          }
        }

        if (aShapes[0] instanceof ORYX.Core.Canvas) {
          $scope.editor.getCanvas().setHightlightStateBasedOnX(coord.x);
        }

        var stencil = undefined;
        var stencilSets = $scope.editor.getStencilSets().values();
        for (var i = 0; i < stencilSets.length; i++) {
          var stencilSet = stencilSets[i];
          var nodes = stencilSet.nodes();
          for (var j = 0; j < nodes.length; j++) {
            if (nodes[j].idWithoutNs() === event.target.id) {
              stencil = nodes[j];
              break;
            }
          }

          if (!stencil) {
            var edges = stencilSet.edges();
            for (var j = 0; j < edges.length; j++) {
              if (edges[j].idWithoutNs() === event.target.id) {
                stencil = edges[j];
                break;
              }
            }
          }
        }

        var candidate = aShapes.last();

        var isValid = false;
        if (stencil.type() === "node") {
          //check containment rules
          var canContain = $scope.editor.getRules().canContain({containingShape: candidate, containedStencil: stencil});

          var parentCandidate = aShapes.reverse().find(function (candidate) {
            return (candidate instanceof ORYX.Core.Canvas
              || candidate instanceof ORYX.Core.Node
              || candidate instanceof ORYX.Core.Edge);
          });

          if (!parentCandidate) {
            $scope.dragCanContain = false;
            return false;
          }

          $scope.dragCurrentParent = parentCandidate;
          $scope.dragCurrentParentId = parentCandidate.id;
          $scope.dragCurrentParentStencil = parentCandidate.getStencil().id();
          $scope.dragCanContain = canContain;
          $scope.dropTargetElement = parentCandidate;
          isValid = canContain;

        } else { //Edge

          var shapes = $scope.editor.getSelection();
          if (shapes && shapes.length == 1) {
            var currentSelectedShape = shapes.first();
            var curCan = candidate;
            var canConnect = false;

            var targetStencil = $scope.getStencilItemById(curCan.getStencil().idWithoutNs());
            if (targetStencil) {
              var associationConnect = false;
              if (stencil.idWithoutNs() === 'Association' && (curCan.getStencil().idWithoutNs() === 'TextAnnotation' || curCan.getStencil().idWithoutNs() === 'BoundaryCompensationEvent')) {
                associationConnect = true;
              } else if (stencil.idWithoutNs() === 'DataAssociation' && curCan.getStencil().idWithoutNs() === 'DataStore') {
                associationConnect = true;
              }

              if (targetStencil.canConnectTo || associationConnect) {
                while (!canConnect && curCan && !(curCan instanceof ORYX.Core.Canvas)) {
                  candidate = curCan;
                  //check connection rules
                  canConnect = $scope.editor.getRules().canConnect({
                    sourceShape: currentSelectedShape,
                    edgeStencil: stencil,
                    targetShape: curCan
                  });
                  curCan = curCan.parent;
                }
              }
            }
            var parentCandidate = $scope.editor.getCanvas();

            isValid = canConnect;
            $scope.dragCurrentParent = parentCandidate;
            $scope.dragCurrentParentId = parentCandidate.id;
            $scope.dragCurrentParentStencil = parentCandidate.getStencil().id();
            $scope.dragCanContain = canConnect;
            $scope.dropTargetElement = candidate;
          }

        }

        $scope.editor.handleEvents({
          type: ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW,
          highlightId: 'shapeMenu',
          elements: [candidate],
          color: isValid ? ORYX.CONFIG.SELECTION_VALID_COLOR : ORYX.CONFIG.SELECTION_INVALID_COLOR
        });
      }
    };

  }]);

var KISBPM = KISBPM || {};
//create command for undo/redo
KISBPM.CreateCommand = ORYX.Core.Command.extend({
  construct: function (option, currentReference, position, facade) {
    this.option = option;
    this.currentReference = currentReference;
    this.position = position;
    this.facade = facade;
    this.shape;
    this.edge;
    this.targetRefPos;
    this.sourceRefPos;
    /*
     * clone options parameters
     */
    this.connectedShape = option.connectedShape;
    this.connectingType = option.connectingType;
    this.namespace = option.namespace;
    this.type = option.type;
    this.containedStencil = option.containedStencil;
    this.parent = option.parent;
    this.currentReference = currentReference;
    this.shapeOptions = option.shapeOptions;
  },
  execute: function () {

    if (this.shape) {
      if (this.shape instanceof ORYX.Core.Node) {
        this.parent.add(this.shape);
        if (this.edge) {
          this.facade.getCanvas().add(this.edge);
          this.edge.dockers.first().setDockedShape(this.connectedShape);
          this.edge.dockers.first().setReferencePoint(this.sourceRefPos);
          this.edge.dockers.last().setDockedShape(this.shape);
          this.edge.dockers.last().setReferencePoint(this.targetRefPos);
        }

        this.facade.setSelection([this.shape]);

      } else if (this.shape instanceof ORYX.Core.Edge) {
        this.facade.getCanvas().add(this.shape);
        this.shape.dockers.first().setDockedShape(this.connectedShape);
        this.shape.dockers.first().setReferencePoint(this.sourceRefPos);
      }
    } else {
      this.shape = this.facade.createShape(this.option);
      this.edge = (!(this.shape instanceof ORYX.Core.Edge)) ? this.shape.getIncomingShapes().first() : undefined;
    }

    if (this.currentReference && this.position) {

      if (this.shape instanceof ORYX.Core.Edge) {

        if (!(this.currentReference instanceof ORYX.Core.Canvas)) {
          this.shape.dockers.last().setDockedShape(this.currentReference);

          if (this.currentReference.getStencil().idWithoutNs() === 'TextAnnotation') {
            var midpoint = {};
            midpoint.x = 0;
            midpoint.y = this.currentReference.bounds.height() / 2;
            this.shape.dockers.last().setReferencePoint(midpoint);
          } else {
            this.shape.dockers.last().setReferencePoint(this.currentReference.bounds.midPoint());
          }
        } else {
          this.shape.dockers.last().bounds.centerMoveTo(this.position);
        }
        this.sourceRefPos = this.shape.dockers.first().referencePoint;
        this.targetRefPos = this.shape.dockers.last().referencePoint;

      } else if (this.edge) {
        this.sourceRefPos = this.edge.dockers.first().referencePoint;
        this.targetRefPos = this.edge.dockers.last().referencePoint;
      }
    } else {
      var containedStencil = this.containedStencil;
      var connectedShape = this.connectedShape;
      var bc = connectedShape.bounds;
      var bs = this.shape.bounds;

      var pos = bc.center();
      if (containedStencil.defaultAlign() === "north") {
        pos.y -= (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET + (bs.height() / 2);
      } else if (containedStencil.defaultAlign() === "northeast") {
        pos.x += (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.width() / 2);
        pos.y -= (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.height() / 2);
      } else if (containedStencil.defaultAlign() === "southeast") {
        pos.x += (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.width() / 2);
        pos.y += (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.height() / 2);
      } else if (containedStencil.defaultAlign() === "south") {
        pos.y += (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET + (bs.height() / 2);
      } else if (containedStencil.defaultAlign() === "southwest") {
        pos.x -= (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.width() / 2);
        pos.y += (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.height() / 2);
      } else if (containedStencil.defaultAlign() === "west") {
        pos.x -= (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET + (bs.width() / 2);
      } else if (containedStencil.defaultAlign() === "northwest") {
        pos.x -= (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.width() / 2);
        pos.y -= (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.height() / 2);
      } else {
        pos.x += (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET + (bs.width() / 2);
      }

      // Move shape to the new position
      this.shape.bounds.centerMoveTo(pos);

      // Move all dockers of a node to the position
      if (this.shape instanceof ORYX.Core.Node) {
        (this.shape.dockers || []).each(function (docker) {
          docker.bounds.centerMoveTo(pos);
        });
      }

      //this.shape.update();
      this.position = pos;

      if (this.edge) {
        this.sourceRefPos = this.edge.dockers.first().referencePoint;
        this.targetRefPos = this.edge.dockers.last().referencePoint;
      }
    }

    this.facade.getCanvas().update();
    this.facade.updateSelection();

  },
  rollback: function () {
    this.facade.deleteShape(this.shape);
    if (this.edge) {
      this.facade.deleteShape(this.edge);
    }
    //this.currentParent.update();
    this.facade.setSelection(this.facade.getSelection().without(this.shape, this.edge));
  }
});
